Improved metallic roof



190, 95,990. PATENTED SEPT, 28, 1869, J. 9191mm. METALLIC 1900?.-

I jr zverzfor whichspecifications,

acadsate? JOHN sinuous, or'nocH'E sTER,,NEw YORK Letters Patent N (95,390, dated September 2's-,i8c9.

IMPROVED METALLIC ROOF.

The Schedule referred tojn these Letters Patent and making part of the same.

To-all whom it may concern:

Be it known that I, J 012m Smnous, of Rochester,

in the county of Monroe, and State of New York, have invented certain new and useful Improvements in the Construction of Metallic Roofs; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being hadtp the accompany'ing drawings, making part of this specification, in

' Figure 1 is a section of a portion of a roof made upon my plan, taken transversely through the ribs Figure 2 is a longitudinal. section, showing a rib in elevation.

Figure 3 is an enlarged section of a-rib, B, showing the formation of the joint between the sheets a a2;

The object of my invention, the nature of which will he understood by reference to the drawings and is to provide a metallic roof that will not warp and open at the seams by expansion and. contraction, and will be impervious to water, particularly when bodies of snow lie and melt upon it.

To enable others to make and use-my invent-ion, I

will describe its construction. I

I make my improved roof of any metal in common use for such purpose, providing the-wooden ribs-B B,

fig 1, running at right angles to'the ridge-pole, upon which ribs the ends of the sheets a. a, are joined.

hese ribs stiffen the roof and lift the seams of the sheets above any ordinary depth of water that may fall upon it. y

They are made triangular in section, 'or in other suitable shape, and the sheets a a are bent near the end, in such a manner that they shall lie against the sides of the ribs, and project a suitable distance above them, as'showu at b, fig. 1, one sheet being somewhat longer than that on the opposite side oi the rib, as shown by the: dotted line.

Betweemthe sheets where they rise abovethe ribs, I introduce strips of packing, 0', made of cloth, felt, or other suitable material, saturated with paint or oil.

This packing 'is doubled over the edge of the short sheets, as seen at b, fig. 1, and is retained inits place while the seam is being made, by cleats c, figS.1-'all(l- 2, shown in dotted lines in fig. 2, placed at suitable points along the ribs, which cleats are bent over at their upper ends to clasp the packing tightly against the short sheets, and are brought down and nailed, at their lower ends, to the roof.

The cleats 0 also retain the sheetsa in their places, I

and prevent their ends from lifting by expansion or other causes. 5

- ress The longer sheets are next applied, and bent ovcr both packing and cleats at the edges of the shortsheets',

as shown at b, fig. 1, after which. both sheets, together with the packing, are given another turn,-forn1iug a double fold or seam, b, with'the packing inter-posed, as

indicated by the red lines in figs. I and 8.

This seam also secures together, and consequently all are held down by the cleats c.

lhe'transverse joints are made by overlapping the other to: a-suitable distance, and insheets upon each s'erting between them, at'the edges, a strip ofpac-king similar to that used'iu thelongitudinal seams,'as shown at a: :v, fig. 2, after which nails are driven through the whole, and clinched on the under side of the roofboardA. I

- This arrangement makes a perfectly tightjoint'and alsopr'events the sheets from warping or. lifting, as the nails have suiiicient elasticity in the. \voodtii allow extpansiou and contraction.

The ribs 13 B are brought down to the gutter-plate d, fig. 2,"upon which'l provide the caps 0, either' sol-. up from the same, at proper distances',-tojcorrespond with the location of dered to the gutten or swaged the ribs B.

'. The ribs are cbamfered suitably at their lower ends, I

so asto enter the recesses formed by the caps e, and the packing a is continued. over these caps, so that the sheets a! which. are somewhatfextended at the point i, may be bent foldbismadefl N V This mode of securing the connection of the ribs with the gutter-plate, effectually prevents the water from setting back underthe sheets. p

The seam or lock b may'be given anotherfold, and laid down uponthe side-of he' rib, ifit'i's desired to reduce the height of the projectionsupon the roof.

. I amvnot necessarily confined to'the triangular shape of the ribs B, but I preferjthat'form, as the easiest to construct, and as-fully as efficient as any other.

The sheets a af-are-bent to their proper shape in a before being laid, and plate, can be formed in a similar Vhat I claim as my invention, by Letters-Patent, is,--

In' combination with the ribs B, and double-locked seam b, the fibrous packing 'r, as shown and described, and for the purposes set'forth.

- JNO. SIDDONS.

manner.

and desire to secure Witnesses A. SENOTT,

F. H. CLEMENT.

the sheets a auda firmly down tightly upon it before the the capsda, in thegutter-- sheets a and a3, 

